| 回填应与管道沟槽的回填一起进行 |
| 添加时间：2019/6/29 13:37:08 浏览次数： |
| 木质检查井模板装置完结并在排水管线(包含管道和检查井模板等)检验合格后应及时回填，回填前可用砂土袋、钢钎、木支撑将井体固定，回填应与管道沟槽的回填一起进行。回填时，应分层对称回填，保证支管及检查井模板发生位移契合表8的要求。 When the formwork device of wood inspection well is completed and the drainage pipeline (including pipelines and inspection well formwork, etc.) is qualified, it should be backfilled in time. Before backfilling, the well body can be fixed by sand bag, steel brazing and wood support. Backfilling should be carried out together with the backfilling of pipeline groove. When backfilling, it should be stratified and symmetrical backfilling to ensure that the displacement of the branch pipe and the template of the inspection well meets the requirements of Table 8. |
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